Attorney General Dustin McDaniel and U.S. Attorney Chris Thyer announced Thursday that state and federal prosecutors filed a joint enforcement action against Exxon, alleging violations of environmental laws.

Exxon's Pegasus pipeline ruptured on March 29 in Mayflower, spilling an estimated 5,000 barrels of oil and causing the evacuation of more than 20 homes. Some nearby residents have sued the company.

The spill was near Lake Conway and more than 200 birds, mammals and turtles were caught by volunteers who cleaned the oil off of them.